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This PR removes the logic about _hadAtLeastOneListener, a boolean to check during maybeDispose. Although this check has existed when disposal was first added, it was a weird logic without explanation, and most importantly, removing it doesn't seem to break anything.

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If you need help, consider asking for advice on the #hackers-new channel on Discord.

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It looks like this pull request may not have tests. Please make sure to add tests or get an explicit test exemption before merging.

If you are not sure if you need tests, consider this rule of thumb: the purpose of a test is to make sure someone doesn't accidentally revert the fix. Ask yourself, is there anything in your PR that you feel it is important we not accidentally revert back to how it was before your fix?

Reviewers: Read the Tree Hygiene page and make sure this patch meets those guidelines before LGTMing.If you believe this PR qualifies for a test exemption, contact "@test-exemption-reviewer" in the #hackers channel in Discord (don't just cc them here, they won't see it!). The test exemption team is a small volunteer group, so all reviewers should feel empowered to ask for tests, without delegating that responsibility entirely to the test exemption group.

@github-actions github-actions bot added the framework flutter/packages/flutter repository. See also f: labels. label Apr 8, 2025
@dkwingsmt dkwingsmt marked this pull request as draft April 8, 2025 23:00
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For now no unit tests of Flutter break. I'll run a full google test for verification.

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lgtm

@dkwingsmt dkwingsmt marked this pull request as ready for review April 9, 2025 16:45
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I have verified that this change does not break anything in Google tests.

@dkwingsmt dkwingsmt added the autosubmit Merge PR when tree becomes green via auto submit App label Apr 9, 2025
@auto-submit auto-submit bot added this pull request to the merge queue Apr 9, 2025
Merged via the queue into flutter:master with commit 11d53f5 Apr 9, 2025
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@flutter-dashboard flutter-dashboard bot removed the autosubmit Merge PR when tree becomes green via auto submit App label Apr 9, 2025
@dkwingsmt dkwingsmt deleted the image-dispose-no-listeners branch April 9, 2025 21:24
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…sposal (flutter#166797)

This PR removes the logic about `_hadAtLeastOneListener`, a boolean to
check during `maybeDispose`. Although this check has existed when
disposal was first added, it was a weird logic without explanation, and
most importantly, removing it doesn't seem to break anything.

## Pre-launch Checklist

- [ ] I read the [Contributor Guide] and followed the process outlined
there for submitting PRs.
- [ ] I read the [Tree Hygiene] wiki page, which explains my
responsibilities.
- [ ] I read and followed the [Flutter Style Guide], including [Features
we expect every widget to implement].
- [ ] I signed the [CLA].
- [ ] I listed at least one issue that this PR fixes in the description
above.
- [ ] I updated/added relevant documentation (doc comments with `///`).
- [ ] I added new tests to check the change I am making, or this PR is
[test-exempt].
- [ ] I followed the [breaking change policy] and added [Data Driven
Fixes] where supported.
- [ ] All existing and new tests are passing.

If you need help, consider asking for advice on the #hackers-new channel
on [Discord].

<!-- Links -->
[Contributor Guide]:
https://github.com/flutter/flutter/blob/main/docs/contributing/Tree-hygiene.md#overview
[Tree Hygiene]:
https://github.com/flutter/flutter/blob/main/docs/contributing/Tree-hygiene.md
[test-exempt]:
https://github.com/flutter/flutter/blob/main/docs/contributing/Tree-hygiene.md#tests
[Flutter Style Guide]:
https://github.com/flutter/flutter/blob/main/docs/contributing/Style-guide-for-Flutter-repo.md
[Features we expect every widget to implement]:
https://github.com/flutter/flutter/blob/main/docs/contributing/Style-guide-for-Flutter-repo.md#features-we-expect-every-widget-to-implement
[CLA]: https://cla.developers.google.com/
[flutter/tests]: https://github.com/flutter/tests
[breaking change policy]:
https://github.com/flutter/flutter/blob/main/docs/contributing/Tree-hygiene.md#handling-breaking-changes
[Discord]:
https://github.com/flutter/flutter/blob/main/docs/contributing/Chat.md
[Data Driven Fixes]:
https://github.com/flutter/flutter/blob/main/docs/contributing/Data-driven-Fixes.md
engine-flutter-autoroll added a commit to engine-flutter-autoroll/packages that referenced this pull request Aug 15, 2025
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engine-flutter-autoroll added a commit to engine-flutter-autoroll/packages that referenced this pull request Aug 16, 2025
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